| Summary: | The asymmetric unit of the title compound, [Pd(C6H4NO2)4]·2H2O, consists of a quarter of a neutral PdIV complex and half of a solvent water molecule. In the complex, the PdIV ion is located on a fourfold inversion axis and eight-coordinated in a distorted dodecahedral environment by four N and four O atoms from four symmetry-related pyridine-2-carboxylate (pic) anionic ligands. In the crystal, the water molecule is involved in O—H...O hydrogen bonding, and weak intermolecular C—H...O hydrogen bonds occur. There are also intermolecular π–π interactions between adjacent pyridine rings, with a centroid–centroid distance of 3.715 (3) Å.
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